A misnomer commonly heard from un-hip parents and those of impaired hearing, stemming from the phrase "LAN party," where LAN stands for "Local Area Network." They often feature pizza and stimulants, such as sugar, caffeine, and guarana, can last upwards of 40 hours, and frequently cause participants to be dead to the world for a day or two afterward. See also: LAN Party.
Dad: "You kids all ready for your LAND PARTY tonight?"
Kids: <roll their eyes>
Kids: "Hahaha, right, dad. We're ready off the LAND party. Just let me grab a CAND of coke, MAND. Are we taking the car or the VAND?"